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BR7800584A - IMPROVEMENTS IN OR RELATING TO TELEPHONE SYSTEMS - Google Patents

IMPROVEMENTS IN OR RELATING TO TELEPHONE SYSTEMS

Info

Publication number
BR7800584A
BR7800584A BR7800584A BR7800584A BR7800584A BR 7800584 A BR7800584 A BR 7800584A BR 7800584 A BR7800584 A BR 7800584A BR 7800584 A BR7800584 A BR 7800584A BR 7800584 A BR7800584 A BR 7800584A
Authority
BR
Brazil
Prior art keywords
relating
telephone systems
telephone
systems
Prior art date
Application number
BR7800584A
Other languages
Portuguese (pt)
Inventor
A Lawson
Original Assignee
Int Standard Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of BR7800584A publication Critical patent/BR7800584A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
BR7800584A 1977-02-01 1978-01-31 IMPROVEMENTS IN OR RELATING TO TELEPHONE SYSTEMS BR7800584A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4003/77A GB1567568A (en) 1977-02-01 1977-02-01 Telephone systems

Publications (1)

Publication Number Publication Date
BR7800584A true BR7800584A (en) 1978-10-24

Family

ID=9768947

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7800584A BR7800584A (en) 1977-02-01 1978-01-31 IMPROVEMENTS IN OR RELATING TO TELEPHONE SYSTEMS

Country Status (2)

Country Link
BR (1) BR7800584A (en)
GB (1) GB1567568A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3241022A1 (en) * 1982-11-06 1984-05-10 Robert Bosch Gmbh, 7000 Stuttgart CAR TELEPHONE
GB8432807D0 (en) * 1984-12-31 1985-02-06 Emx International Ltd Loop data link

Also Published As

Publication number Publication date
GB1567568A (en) 1980-05-14

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